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Kernel/IPStack - (minor) TODO retransmit timer
[tpg/acess2.git]
/
KernelLand
/
Kernel
/
time.c
diff --git
a/KernelLand/Kernel/time.c
b/KernelLand/Kernel/time.c
index
449afcd
..
15b6190
100644
(file)
--- a/
KernelLand/Kernel/time.c
+++ b/
KernelLand/Kernel/time.c
@@
-74,20
+74,20
@@
void Timer_CallbackThread(void *Unused)
*/
void Timer_CallTimers()
{
*/
void Timer_CallTimers()
{
+ // Tick the random number generator every time timers are checked
+ rand();
+
SHORTLOCK(&gTimers_ListLock);
while( gTimers && gTimers->FiresAfter < now() )
{
SHORTLOCK(&gTimers_ListLock);
while( gTimers && gTimers->FiresAfter < now() )
{
+ ASSERT( gTimers != gTimers->Next );
// Get timer from list
tTimer *timer = gTimers;
// Get timer from list
tTimer *timer = gTimers;
-
- ASSERT( gTimers != gTimers->Next );
gTimers = gTimers->Next;
// Perform event
if( timer->Callback ) {
LOG("Callback schedule %p", timer);
gTimers = gTimers->Next;
// Perform event
if( timer->Callback ) {
LOG("Callback schedule %p", timer);
- // PROBLEM! Possibly causes rescheudle during interrupt
-// Mutex_Acquire( &timer->Lock ); // Released once the callback fires
Workqueue_AddWork(&gTimers_CallbackQueue, timer);
}
else {
Workqueue_AddWork(&gTimers_CallbackQueue, timer);
}
else {
@@
-117,7
+117,8
@@
tTimer *Time_CreateTimer(int Delta, tTimerCallback *Callback, void *Argument)
*/
void Time_ScheduleTimer(tTimer *Timer, int Delta)
{
*/
void Time_ScheduleTimer(tTimer *Timer, int Delta)
{
- tTimer *t, *p;
+ tTimer *t;
+ tTimer **prev_next;
// Sanity checks
if( !Timer ) return ;
// Sanity checks
if( !Timer ) return ;
@@
-134,9
+135,10
@@
void Time_ScheduleTimer(tTimer *Timer, int Delta)
// Add into list (sorted)
SHORTLOCK(&gTimers_ListLock);
// Mutex_Release( &Timer->Lock ); // Prevent deadlocks
// Add into list (sorted)
SHORTLOCK(&gTimers_ListLock);
// Mutex_Release( &Timer->Lock ); // Prevent deadlocks
- for( p
= (tTimer*)&gTimers, t = gTimers; t; p =
t, t = t->Next )
+ for( p
rev_next = &gTimers, t = gTimers; t; prev_next = &t->Nex
t, t = t->Next )
{
{
- ASSERT( p != t ); ASSERT( CheckMem(t, sizeof(tTimer)) );
+ ASSERT( prev_next != &t->Next );
+ ASSERT( CheckMem(t, sizeof(tTimer)) );
if( t == Timer )
{
LOG("Double schedule - increasing delta");
if( t == Timer )
{
LOG("Double schedule - increasing delta");
@@
-147,9
+149,9
@@
void Time_ScheduleTimer(tTimer *Timer, int Delta)
if( t->FiresAfter > Timer->FiresAfter ) break;
}
Timer->Next = t;
if( t->FiresAfter > Timer->FiresAfter ) break;
}
Timer->Next = t;
-
p->N
ext = Timer;
+
*prev_n
ext = Timer;
Timer->bActive = 1;
Timer->bActive = 1;
- LOG("
%p %p %p", p
, Timer, t);
+ LOG("
prev_next=%p Timer=%p next=%p", prev_next
, Timer, t);
SHORTREL(&gTimers_ListLock);
}
SHORTREL(&gTimers_ListLock);
}
@@
-158,17
+160,19
@@
void Time_ScheduleTimer(tTimer *Timer, int Delta)
*/
void Time_RemoveTimer(tTimer *Timer)
{
*/
void Time_RemoveTimer(tTimer *Timer)
{
- tTimer *t, *p;
+ tTimer *t;
+ tTimer **prev_next;
if( !Timer ) return ;
SHORTLOCK(&gTimers_ListLock);
if( !Timer ) return ;
SHORTLOCK(&gTimers_ListLock);
- for( p
= (tTimer*)&gTimers, t = gTimers; t; p =
t, t = t->Next )
+ for( p
rev_next = &gTimers, t = gTimers; t; prev_next = &t->Nex
t, t = t->Next )
{
{
- ASSERT( p != t ); ASSERT( CheckMem(t, sizeof(tTimer)) );
+ ASSERT( prev_next != &t->Next );
+ ASSERT( CheckMem(t, sizeof(tTimer)) );
if( t == Timer )
{
if( t == Timer )
{
-
p->N
ext = t->Next;
+
*prev_n
ext = t->Next;
break ;
}
}
break ;
}
}
@@
-206,6
+210,7
@@
void Time_InitTimer(tTimer *Timer, tTimerCallback *Callback, void *Argument)
Timer->Argument = Argument;
// memset( &Timer->Lock, 0, sizeof(Timer->Lock) );
Timer->bActive = 0;
Timer->Argument = Argument;
// memset( &Timer->Lock, 0, sizeof(Timer->Lock) );
Timer->bActive = 0;
+ LOG("Initialised timer %p (cb=%p,arg=%p)", Timer, Callback, Argument);
}
/**
}
/**
@@
-226,15
+231,23
@@
void Time_FreeTimer(tTimer *Timer)
LOG("%p deallocated %p", __builtin_return_address(0), Timer);
}
LOG("%p deallocated %p", __builtin_return_address(0), Timer);
}
+void Time_ScheduleEvent(int Delay)
+{
+ tTimer *t = &Proc_GetCurThread()->ThreadTimer;
+ Time_RemoveTimer(t);
+ Time_InitTimer(t, NULL, NULL);
+ Time_ScheduleTimer(t, Delay);
+}
+
/**
* \fn void Time_Delay(int Delay)
* \brief Delay for a small ammount of time
*/
void Time_Delay(int Delay)
{
/**
* \fn void Time_Delay(int Delay)
* \brief Delay for a small ammount of time
*/
void Time_Delay(int Delay)
{
-
tTimer *t = &Proc_GetCurThread()->ThreadTimer
;
- T
ime_InitTimer(t, NULL, NULL
);
- Time_Schedule
Timer(t,
Delay);
+
LOG("(%i)", Delay)
;
+ T
hreads_ClearEvent(THREAD_EVENT_TIMER
);
+ Time_Schedule
Event(
Delay);
Threads_WaitEvents(THREAD_EVENT_TIMER);
}
Threads_WaitEvents(THREAD_EVENT_TIMER);
}
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